docs: def get_stakes(self):
          """List all your stakes.
  
          Returns:
              list of dicts: stakes
  
              Each stake is a dict with the following fields:
  
                  * confidence (`decimal.Decimal`)
                  * roundNumber (`int`)
                  * tournamentId (`int`)
                  * soc (`decimal.Decimal`)
                  * insertedAt (`datetime`)
                  * staker (`str`): NMR adress used for staking
                  * status (`str`)
                  * txHash (`str`)
                  * value (`decimal.Decimal`)
  
          Example:
  
              >>> api = NumerAPI(secret_key="..", public_id="..")
              >>> api.get_stakes()
              [{'confidence': Decimal('0.053'),
                'insertedAt': datetime.datetime(2017, 9, 26, 8, 18, 36, 709000, tzinfo=tzutc()),
                'roundNumber': 74,
                'soc': Decimal('56.60'),
                'staker': '0x0000000000000000000000000000000000003f9e',
                'status': 'confirmed',
                'tournamentId': 1,
                'txHash': '0x1cbb985629552a0f57b98a1e30a5e7f101a992121db318cef02e02aaf0e91c95',
                'value': Decimal('3.00')},
                ..
               ]
          """
          query = """
            query {
              user {
                stakeTxs {
                  confidence
                  insertedAt
                  roundNumber
                  tournamentId
                  soc
                  staker
                  status
                  txHash
                  value
                }
              }
            }
          """
          data = self.raw_query(query, authorization=True)['data']
          stakes = data['user']['stakeTxs']
          # convert strings to python objects
          for s in stakes:
              utils.replace(s, "insertedAt", utils.parse_datetime_string)
              utils.replace(s, "soc", utils.parse_float_string)
              utils.replace(s, "confidence", utils.parse_float_string)
              utils.replace(s, "value", utils.parse_float_string)
          return stakes